Re: a[[0]] equivalent to a[[-1]] and so forth
- To: mathgroup at smc.vnet.net
- Subject: [mg65153] Re: a[[0]] equivalent to a[[-1]] and so forth
- From: "Jens-Peer Kuska" <kuska at informatik.uni-leipzig.de>
- Date: Wed, 15 Mar 2006 23:59:27 -0500 (EST)
- Organization: Uni Leipzig
- References: <dv8v5k$n91$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
lst = {4, 5, 6};
Table[lst[[Mod[i, Length[lst]] + 1]], {i, -6, 6}]
??
Regards
Jens
"Alexandre Costa" <amscosta at uem.br> schrieb im
Newsbeitrag news:dv8v5k$n91$1 at smc.vnet.net...
| Dear Group,
| I have a simple issue:
| If I have a list such as :
| a = {4, 5, 6};
| How can I do this in an elegant way:
| a[[0]] equivalent to a[[-1]]
| a[[-1]] equivalent to a[[-2]]
| and so forth.
|
| I thought of a[[If[i <=0, i - 1, i]]] would
solve the problem
| but I want a more elegant way of doing this.
|
| Any help is very welcome,
| Thanks,
| Alex
|
|